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Graphs make information easier to see. This is especially true when two or more sets of numbers are related in some way. Scientists and engineers use graphs so that they can get a better understanding of the broad meaning and importance of their data. We can use LineCharts in our applications to maximize the look and feel of applications. Graphical representation of data attracts users and also gives a decent look to User Interface. Before starting the code, we will need a JFreechart library to show different charts in our application. JFreeChart is a free 100% Java chart library that makes it easy for developers to display professional quality charts in their applications. You can download JFreeChart library from this URL . Once you download the Zip file, after unzipping the file you will get multiple jar files in lib folder. For this tutorial we do not need all jars of this library. We will use two jar files for this example. 1). jfreechart-x.x.x 2). jcommon-x.x...

The FormLayout helps you lay out and implement consistent Swing panels fast. FormLayout makes simple things easy and the hard stuff possible. • Powerful, flexible, previse layout • Easy to learn and easy to work with • Faster panel production • Better code readability To use this Layout in Intellij or any other IDE you will need to add its jar files into your project. First download jar files in your system using this URL and then add these jars to your project. If you don’t know how to add external libraries in project in Intellij IDEA, you can get help of this post .

At many situations we must need to add external libraries to our projects to solve a problem or to add some extra functionality. Intellij IDE offers two ways to add external libraries to your project  By adding Jar Files.  Using maven dependency code By adding jar files. For this you will need that external jar file/s in your system. Now follow these steps:- (a). Click on File, and click on Project Structures… (b). A dialog box having name Project Structure will open (c). Click on Libraries (In left side), then click on green plus Icon and then click on Java (d). A dialog box having name Select Library Files will open. Navigate through Folders and select jar file/s you want to add in your project. Then click OK. Your jar files are now added to your project.